Implementation of water quality monitoring

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1 Joint Ipoly/Ipel Catchment Management HUSK/1101/2.1.1/0153 Implementation of water quality monitoring Dr. Adrienne Clement Budapest University of Technology and Economics Department of Sanitary and Environmental Engineering

2 Tasks related to project activities 1. Implementation of water quality monitoring for better knowledge of the water bodies Focus on the smaller water courses Gap analyses in order to select water bodies and paremeters Chemical and physico-chemical elements + BQS 2. Supporting wastewater strategy development Detection of point sources (urban and industrial WWTPs) Evaluation of water quality impacts Data collection in order to supply water quality model Subcontracting (NEKI - KSZI BME) Implementing period:

3 Sampling sites in the Hungarian Ipoly catchment

Water quality measurements Physico-chemical elements: ph MSZ 448-22:1985 conductivity MSZ 448-32: 1977 DO MSZ EN 25814:1998 BOD 5 MSZ EN 1899-2:2000 CODcr MSZ 448-20:1990 NH4-N MSZ ISO 7150-1:1992

4 Water quality measurements Physico-chemical elements: ph MSZ :1985 conductivity MSZ : 1977 DO MSZ EN 25814:1998 BOD 5 MSZ EN :2000 CODcr MSZ :1990 NH4-N MSZ ISO :1992 NO2-N and NO3-N MSZ :2009 Organic N MSZ EN 25663:1998 Cl MSZ :2009 PO4-P and TP MSZ :2009 Dangerous substances: Toxic metals (Hg, Pb, Cr, Ni, Cu, Cn, Cr, As) MSZ EN ISO :2005 Pesticides WBSE-47: 2009

Biological quality elements Water body Phythoplankton Phythobenthon Aquatic macrophyta Benthic invertebrates Börzsöny- és Hosszúvölgyi-patak X X X X Csitári-patak alsó X X X X Csitári-patak felső X X

5 Biological quality elements Water body Phythoplankton Phythobenthon Aquatic macrophyta Benthic invertebrates Börzsöny- és Hosszúvölgyi-patak X X X X Csitári-patak alsó X X X X Csitári-patak felső X X X X Damásdi-patak X X X X Darázsdói- és Lóci-patak X X X X X Derék-patak és mellékvizei X X X X Dobroba-patak-alsó X X X X Dobroba-patak és mellékvizei X X X X X Fekete-víz alsó X X X X X Fekete-víz felső és mellékágai X X X X X Ganádi-patak X X X X Hévíz-patak X X X X Kemence-patak X X X Kétbodonyi-patak X X X X Letkés-patak X X X X Lókos-patak-felső és Jenői-patak X X X X X Lókos-patak X X X X X Ménes-patak-felső és X X X X Nógrádmegyeri-patak Ménes-patak (Ipoly-vízgyűjtő) X X X X X Nyerges-patak (AEP846) X X X X Nyerges-patak (AEP847) X X X X Szakáli-patak X X X X Szentlélek-patak X X X X X Komra-patak X X X X Number of measurements Fish

Monitoring for model supply approach: Steady state conditions Typical low flow (low dilution for point sources, reduced diffuse load) Simultaneous measurements of river discharge, upstream and

6 Monitoring for model supply approach: Steady state conditions Typical low flow (low dilution for point sources, reduced diffuse load) Simultaneous measurements of river discharge, upstream and downstream water quality and emission from point sources Two type of investigations: Measuring longitudinal profiles (Ipoly and its first order tributaries) 48 hours measurement to examine changes over time (one selected significant point source and receiving water body)

7 Measuring longitudinal profiles: October, 2013 Ipoly (Balassagyarmat) Q measured = 1.9 m 3 /s Sampling sites: Ipoly/Ipel: 11 cross sections 26 sites of 6 tributaries 17 samples from WWTP effluents (15 urban + 2 industrial) Q10% ( ) = 3.76 m 3 /s Qmin ( ) = m 3 /s

8 Salinity Average {Cloride, conductivity} Less than good Good status Excelent status WWTP effluent Water quality classification based on physico-chemical elements in aggreement with 10/2010 VM Ministerial Decree Nutrients Average {NO3-N, TN, PO4-P, TP} Less than good Good status Excelent status WWTP effluent

10 River monitoring site E = Q*C Contribution of WWTP effluents to measured river load (%) without decay (river retention was neglected) Tributary Discharge Inorg N PO4-P Total P Cloride BOD Dobroda-p 11, Ménes-p ,4 7,3 Szentlélek-p Feketevíz Lókos-p 16, Derék-p ,

11 48 hours sampling: Szécsény WWTP Szentlélek creek Sampling sites 1. Ipoly upstream to Szentlélek creek 2. Szentlélek patak upstrea to WWTP 3. Szécsény WWTP effluent 4. Szentlélek creek downstream, 0.7 km 5. Szentlélek creek downstream, 2.2 km 6. Ipoly downstream to Szentlélek creek

12 Szentlélek Creek, discharge Q = 45 l/s

13 Diurnal changes: concentration pattern after normalization

14 Impact of ww. discharge on water quality: 1 st order decay model Mean ± StDev

15 Summary and conclusions Monitoring program was executed successfully, Significant improvement of knowledge (longitudinal profile, diurnal variations, impact of wastewater emission on water quality and its contribution to river load), But uncertainties remained (sampling problems, deviation from steady state conditions, analitical error). Thank you for your attention!

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